Experimental and Simulation Study on Formulation of Clove Essential Oil Products Using Alternative Surfactant

Autor(es)

Santos, Diego T. ; Barbosa, Dayane F. ; Vardanega, Renata ; Albarelli, Juliana Q. ; Meireles, M. Angela A.

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF COLLOID SCIENCE AND BIOTECHNOLOGY; v. 2, n. 2, p. 11-pg., 2013-06-01.

Resumo

The formulation of clove essential oil as an emulsion using nonpurified aqueous extract from Pfaffia glomerata roots as surfactant has been experimentally demonstrated. Firstly, a commercial surfactant (OSA-modified starch) was used to evaluate the formulation of nano-emulsions in our devices. Results show that, the method of emulsification and its duration had insignificant influence on all response variables. On the other hand, the influence of OSA-modified starch concentration was significant (P < 0.01) regarding droplet size (d(32) and d(43)), specific surface area and percentage of demulsified oil. Volume fraction of oil influence was significant (P < 0.01) to the droplet size (d(43),) polidispersity, specific surface area and percentage of demulsified oil. Based on these results, the best condition was selected to perform the evaluation of the use of nonpurified aqueous extract from Pfaffia glomerata roots as an alternative surfactant. The properties of the emulsions prepared with this alternative surfactant were quite different to the properties obtained by OSA- modified starch. A stable emulsion with a droplet size in the range of 900-1046 nm was obtained. At the end, different technological scenarios for the production of clove essential oil as an emulsion or as dry microcapsules were compared in terms of utilities consumption and total utility cost using the simulation software SuperPro Designer. The use of the ultrasonication method was more convenient during emulsification, while for encapsulation purposes promising results were obtained by carbon dioxide assisted nebulisation with a bubble dryer (CAN-BD) process. Adopting this process, besides the benefit of low energy consumption, part of the available infrastructure, used for obtaining the essential oil, could be shared. (AU)

• Processo FAPESP: 12/10685-8 - Combinação/acoplamento de processos para a produção e encapsulamento de extratos vegetais de alto valor agregado: avaliação técnica e econômica
• Beneficiário: Maria Angela de Almeida Meireles Petenate
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 12/19304-7 - Biorrefinaria do ginseng brasileiro: simulação e otimização multiobjetivo
• Beneficiário: Diego Tresinari dos Santos
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado
• Processo FAPESP: 10/16485-5 - Avaliação técnica e econômica da integração de processos sustentáveis visando um melhor aproveitamento do ginseng brasileiro (Pfaffia glomerata)
• Beneficiário: Diego Tresinari dos Santos
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 09/17234-9 - Obtenção de antocianinas, carotenóides, flavonóides, óleos voláteis e tocotrienóis por tecnologia supercrítica: parâmetros de processo e caracterização química
• Beneficiário: Maria Angela de Almeida Meireles Petenate
• Modalidade de apoio: Auxílio à Pesquisa - Regular